FS_NEED_ROLL
fs->fs_rolled = FS_NEED_ROLL; /* Mark the fs as unrolled */
fsp->fs_rolled = FS_NEED_ROLL;
(fs->fs_rolled == FS_NEED_ROLL)) {
(fsp->fs_rolled == FS_NEED_ROLL)) {
fspt->fs_rolled = FS_NEED_ROLL;